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<p class="level0"><a name="NAME"></a><h2 class="nroffsh">NAME</h2>
<p class="level0">CURLOPT_REDIR_PROTOCOLS - set protocols allowed to redirect to <a name="SYNOPSIS"></a><h2 class="nroffsh">SYNOPSIS</h2>
<p class="level0">&#35;include &lt;curl/curl.h&gt; 
<p class="level0">CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REDIR_PROTOCOLS, long bitmask); <a name="DESCRIPTION"></a><h2 class="nroffsh">DESCRIPTION</h2>
<p class="level0">Pass a long that holds a bitmask of CURLPROTO_* defines. If used, this bitmask limits what protocols libcurl may use in a transfer that it follows to in a redirect when <a Class="emphasis" href="./CURLOPT_FOLLOWLOCATION.html">CURLOPT_FOLLOWLOCATION</a> is enabled. This allows you to limit specific transfers to only be allowed to use a subset of protocols in redirections. 
<p class="level0">By default libcurl will allow all protocols on redirect except several disabled for security reasons: Since 7.19.4 FILE and SCP are disabled, and since 7.40.0 SMB and SMBS are also disabled. <span Class="emphasis">CURLPROTO_ALL</span> enables all protocols on redirect, including those disabled for security. 
<p class="level0">These are the available protocol defines: <pre class="level0">
CURLPROTO_DICT
CURLPROTO_FILE
CURLPROTO_FTP
CURLPROTO_FTPS
CURLPROTO_GOPHER
CURLPROTO_HTTP
CURLPROTO_HTTPS
CURLPROTO_IMAP
CURLPROTO_IMAPS
CURLPROTO_LDAP
CURLPROTO_LDAPS
CURLPROTO_POP3
CURLPROTO_POP3S
CURLPROTO_RTMP
CURLPROTO_RTMPE
CURLPROTO_RTMPS
CURLPROTO_RTMPT
CURLPROTO_RTMPTE
CURLPROTO_RTMPTS
CURLPROTO_RTSP
CURLPROTO_SCP
CURLPROTO_SFTP
CURLPROTO_SMB
CURLPROTO_SMBS
CURLPROTO_SMTP
CURLPROTO_SMTPS
CURLPROTO_TELNET
CURLPROTO_TFTP
</pre>

<p class="level0"><a name="DEFAULT"></a><h2 class="nroffsh">DEFAULT</h2>
<p class="level0">All protocols except for FILE, SCP and since 7.40.0 SMB and SMBS. <a name="PROTOCOLS"></a><h2 class="nroffsh">PROTOCOLS</h2>
<p class="level0">All <a name="EXAMPLE"></a><h2 class="nroffsh">EXAMPLE</h2>
<p class="level0"><pre class="level0">
curl = curl_easy_init();
if(curl) {
&nbsp; /* pass in the URL from an external source */
&nbsp; curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
&nbsp;
&nbsp; /* only allow redirects to HTTP and HTTPS URLs */
&nbsp; curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS,
&nbsp;                  CURLPROTO_HTTP | CURLPROTO_HTTPS);
&nbsp;
&nbsp; /* Perform the request */
&nbsp; curl_easy_perform(curl);
}
</pre>

<p class="level0"><a name="AVAILABILITY"></a><h2 class="nroffsh">AVAILABILITY</h2>
<p class="level0">Added in 7.19.4, before then it would follow all protocols. <a name="RETURN"></a><h2 class="nroffsh">RETURN VALUE</h2>
<p class="level0">Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not. <a name="SEE"></a><h2 class="nroffsh">SEE ALSO</h2>
<p class="level0"><a Class="manpage" href="./CURLOPT_PROTOCOLS.html">CURLOPT_PROTOCOLS</a><p class="roffit">
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